Product Description
Rigid Conduit Couplings
General
The rigid conduit coupling is used to connect the electrical steel conduits together, thus extending the length of the conduit pipe. It is manufactured from seamless steel pipes according to ANSI C80.1 and UL6 standards with UL certificate number of E308290. Its trade size can be from 1/2″ to 6″. We can make the rigid conduit coupling zinc plate on both outer side and inner side. The internal surface can also be electro-galvanized completely .
Detailed Product Description
- Standard: UL6 & ANSI C80.1
- Certificates: UL Listed, certificate No.E308290 (177709-001)
- Trade Size: From 1/2″ to 6″
- Usage:Used in Rigid Metal Conduit
- Surface: Zinc plate on both out side and inner side, or hot dipped galvanzied and zinc plate on out side and zinc plate on inner side
- Material: Seamless Steel Pipe
- Package: Carton
- Delivery Time: 20 to 30 days after we receive your advance payment or copy of L/C
- Payment Term: L/C at sight or T/T
Dimension and Weight Chart
| Trade Size | Weight Per 100 pcs | Outside Diameter “B” | Minimum Acceptable Legnth”A” | Standard Carton Qty | Weight Per Carton | ||||
| KG | LBS | mm | in. | mm | in. | PCS | KG | LBS | |
| 1/2″ | 6.35 | 14 | 25.7 | 1.01 | 41.3 | 1.626 | 400 | 25.4 | 56 |
| 3/4″ | 9.07 | 20 | 31.8 | 1.25 | 41.7 | 1.642 | 300 | 27.2 | 60 |
| 1″ | 14.06 | 31 | 38.7 | 1.53 | 50 | 1.969 | 180 | 25.3 | 56 |
| 1-1/4″ | 17.69 | 39 | 47.5 | 1.87 | 51.6 | 2.031 | 100 | 17.7 | 39 |
| 1-1/2″ | 25.4 | 56 | 54.7 | 2.16 | 52.4 | 2.063 | 75 | 19.1 | 42 |
| 2″ | 33.11 | 73 | 67.3 | 2.65 | 54 | 2.126 | 60 | 19.9 | 44 |
| 2-1/2″ | 83.92 | 185 | 82.6 | 3.25 | 81 | 3.189 | 12 | 10.1 | 22 |
| 3″ | 102.51 | 226 | 98.3 | 3.87 | 84.1 | 3.311 | 8 | 8.2 | 18 |
| 3-1/2″ | 162.39 | 358 | 114.3 | 4.5 | 86.5 | 3.406 | 4 | 6.5 | 14 |
| 4″ | 181.44 | 400 | 123.8 | 4.88 | 89.3 | 3.516 | 4 | 7.3 | 16 |
| 5″ | 225.44 | 497 | 152.4 | 6 | 100.4 | 3.953 | 2 | 4.5 | 10 |
| 6″ | 370.1 | 816 | 182.9 | 7.2 | 108 | 4.252 | 3 | 11.1 | 24 |
Company Information
HangZhou East Steel Pipe Co., Ltd is nearly about 60 years old and located in the worldly kite capital -HangZhou city in ZheJiang Province, which is about 156 kilometers far from HangZhou port. It was originated from the socialism cooperative in 1954, then developed into the state-owned enterprise, which was named as HangZhou Steel Pipe company in 1976. In 2001, HangZhou Steel Pipe company was restructured to be the private enterprise and renamed as HangZhou East Steel Pipe Co.,Ltd.
HangZhou East Steel Pipe Co.,Ltd, which occupies about 254,000 square meters, has a total capital of USD80 million and annual comprehensive output of 200,000 tons. Now it owns 800 employees, including 300 senior/intermediate engineers and professional technicians.
Now our electrical products include Rigid Steel Conduit ,Rigid Aluminum Conduit, IMC Conduit, EMT Conduit and Conduit fittings such as elbow, nipple, coupling, etc., and our products have been exported to more than 51 countries in the world, including North America, Middle America, South America, Asia, Middle East, Europe, etc. We are always appreciated by our clients for good quality and excellent services.
- Fast Facts About HangZhou East Steel Pipe Co.,Ltd.
-The largest rigid steel conduit producer in China
-The only producer of Hot Dip Galvanized EMT conduit in the world.
-The professional manufacturer of conduit accessories in China
UL6 Products
FAQ
Q1. Are you a manufacturer or trading company?
A: We are a manufacturer specializing in steel pipe related products for more than 20 years in domestic market, so we can provide products stably for a long time with lower price.
Q2.Can you provide free sample for our test?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. You only need to bear the freight and the sample will be sent out within 7 days.
Q3. Do you have any MOQ limit for production?
A: The order quantity minimum requirement is a 20 GP container. As for our steel pipe product, we usually use container transport for lower freight.
Q4. How to proceed an order for product?
A: Firstly let us know your requirements or application.
Secondly we quote according to your requirements or our suggestions.
Thirdly buyer confirms the samples(if you need) and places deposit for formal order.
Finally we arrange the production.
Q5. Is it OK to print my logo on the product or the carton packing?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q6. How to deal with the faulty?
A: We sincerely welcome you to investigate our factory and inspect the goods. Our products are produced in strict quality control system and the defective rate is low.
Also, if you have any questions or dissatisfaction, please feel free to contact us. We will serve you as soon as possible and give you a satisfactory solution.
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How Do Rigid Couplings Compare to Other Types of Couplings in Terms of Performance?
Rigid couplings offer specific advantages and disadvantages compared to other types of couplings, and their performance depends on the requirements of the application:
1. Performance: Rigid couplings provide excellent torque transmission capabilities and are best suited for applications that demand precise and efficient power transfer. They have minimal backlash and high torsional stiffness, resulting in accurate motion control.
2. Misalignment Tolerance: Rigid couplings cannot tolerate misalignment between shafts. They require precise shaft alignment during installation, which can be time-consuming and may result in increased downtime during maintenance or repairs.
3. Vibration Damping: Rigid couplings offer no damping of vibrations, which means they may not be suitable for systems that require vibration isolation or shock absorption.
4. Maintenance: Rigid couplings are generally low maintenance since they have no moving parts or flexible elements that can wear out over time. Once properly installed, they can provide reliable performance for extended periods.
5. Space Requirements: Rigid couplings are compact and do not add much length to the shaft, making them suitable for applications with limited space.
6. Cost: Rigid couplings are usually more economical compared to some advanced and specialized coupling types. Their simpler design and lower manufacturing costs contribute to their affordability.
7. Application: Rigid couplings are commonly used in applications where shafts are precisely aligned and no misalignment compensation is necessary. They are prevalent in precision machinery, robotics, and applications that require accurate motion control.
In contrast, flexible couplings, such as elastomeric, jaw, or beam couplings, are designed to accommodate misalignment, dampen vibrations, and provide some degree of shock absorption. Their performance is ideal for systems where shafts may experience misalignment due to thermal expansion, shaft deflection, or dynamic loads.
In summary, rigid couplings excel in applications that demand precise alignment and high torque transmission, but they may not be suitable for systems that require misalignment compensation or vibration damping.
Impact of Rigid Coupling on the Overall Reliability of Connected Equipment
A rigid coupling plays a crucial role in enhancing the overall reliability of connected equipment in mechanical systems. Here’s how it positively impacts reliability:
1. Power Transmission Efficiency: Rigid couplings provide a direct and efficient connection between the shafts of the connected equipment. With no flexible elements, there is minimal power loss, ensuring efficient power transmission from one shaft to another.
2. Elimination of Backlash: Rigid couplings have zero backlash, which is crucial in precision applications. Backlash, which is the play or clearance between connected components, can cause inaccuracies in motion control systems. With a rigid coupling, any movement is directly transferred, maintaining precise positioning.
3. Zero-Maintenance Option: Some rigid couplings are designed to be maintenance-free. They do not require lubrication or periodic adjustments, reducing downtime and ensuring continuous operation.
4. High Torque Transmission: Rigid couplings can handle high torque loads, making them suitable for heavy-duty applications. Their robust construction ensures reliable torque transmission without failure or slippage.
5. Resistant to Misalignment: While rigid couplings offer no flexibility, they are excellent at handling axial misalignment and angular misalignment, provided it falls within their design limits. This ability to tolerate some misalignment enhances reliability and reduces the risk of component damage.
6. Vibration Damping: The stiffness of rigid couplings aids in damping vibrations generated during operation. By minimizing vibrations, the coupling helps protect connected equipment from excessive stress and fatigue failure.
7. Increased System Stiffness: Rigid couplings contribute to the overall stiffness of the mechanical system. This stiffness improves the dynamic response of the system and reduces the likelihood of resonance, leading to more reliable operation.
8. Simple and Compact Design: Rigid couplings have a straightforward and compact design, which reduces the chances of component failure or wear. Their simplicity makes them easy to install and maintain, further enhancing system reliability.
9. Suitable for High-Speed Applications: Rigid couplings are well-suited for high-speed applications due to their ability to maintain accurate shaft alignment and transmit torque efficiently.
10. Compatibility with Various Industries: Rigid couplings find applications in a wide range of industries, including automotive, aerospace, manufacturing, and more. Their versatility and reliability make them a popular choice in demanding industrial environments.
Overall, the use of a properly selected and installed rigid coupling enhances the reliability of connected equipment by providing a robust and efficient connection between shafts. It ensures precise power transmission, reduced maintenance requirements, and improved system performance, leading to increased overall reliability and uptime of the mechanical system.
What is a Rigid Coupling and How Does it Work?
A rigid coupling is a type of mechanical coupling used to connect two shafts together at their ends to transmit torque and rotational motion without any flexibility or misalignment accommodation. Unlike flexible couplings, rigid couplings do not allow for angular, parallel, or axial misalignment between the shafts. The main purpose of a rigid coupling is to provide a strong and solid connection between two shafts, ensuring precise and synchronous power transmission between them.
Structure and Design:
Rigid couplings are typically made from durable materials such as steel, stainless steel, or aluminum, which can withstand high torque and load applications. The coupling consists of two halves, each with a cylindrical bore that fits tightly onto the respective shafts. The two halves are then fastened together using bolts or set screws to ensure a secure and rigid connection.
Working Principle:
The working principle of a rigid coupling is straightforward. When the two shafts are aligned precisely and the coupling is securely fastened, any torque applied to one shaft gets directly transferred to the other shaft. The rigid coupling essentially makes the two shafts act as one continuous shaft, allowing for synchronous rotation without any relative movement or play between them.
Applications:
Rigid couplings are commonly used in applications where precise alignment and torque transmission are essential. Some common applications of rigid couplings include:
- High-precision machinery and equipment
- Robotics and automation systems
- Precision motion control systems
- Machine tools
- Shaft-driven pumps and compressors
Advantages:
The key advantages of using rigid couplings include:
- High Torque Transmission: Rigid couplings can handle high torque and power transmission without any loss due to flexibility.
- Precision: They provide accurate and synchronous rotation between the shafts, making them suitable for precise applications.
- Simple Design: Rigid couplings have a simple design with minimal moving parts, making them easy to install and maintain.
- Cost-Effective: Compared to some other coupling types, rigid couplings are generally more cost-effective.
Limitations:
Despite their advantages, rigid couplings have certain limitations:
- No Misalignment Compensation: Rigid couplings cannot accommodate any misalignment between the shafts, making precise alignment during installation crucial.
- Transmits Vibrations: Since rigid couplings do not dampen vibrations, they can transmit vibrations and shocks from one shaft to the other.
- Stress Concentration: In some applications, rigid couplings can create stress concentration at the ends of the shafts.
In summary, rigid couplings are ideal for applications that require precise alignment and high torque transmission. They offer a robust and straightforward solution for connecting shafts and ensuring synchronous power transmission without any flexibility or misalignment accommodation.
editor by CX 2024-05-09